100th Day Cupcake Addition Within 20 Color by Number Worksheet

Addition Within 20100th Day of School1st Grade2nd Grade

Here is a sweet way to grow addition fact fluency on the 100th day of school with a Cupcake mystery picture. Students solve each problem within 20, color by code, and reveal the treat in this color-by-number page that is easy to have on hand for a quick celebration.

Designed for independent work and easy review, this no-prep printable keeps students engaged with flexible options for centers, rotations, or quiet work time.

🏫 For classroom teachers: Great for 1st & 2nd grade classroom math centers, morning work, and sub plans.

🏠 For homeschool parents: Ideal for fun independent daily practice, hands-on learning, and self-checking.

Perfect for:

  • 100th Day of School math activities and celebrations
  • Cupcake math centers and classroom rotations
  • Independent practice or quiet work time
  • Morning work, early finishers, or homework
  • Coloring displays or student work boards
  • Addition Within 20 review and reinforcement
  • Sub plans or small-group practice
  • Addition fact fluency practice
  • Printable take-home activities and more!

Want a different picture or skill? Customize this worksheet in the generator.